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Discussion Starter #1
Hello hope everyone is well
What鈥檚 the name of this switch right next to spark plug #1???
DD25980C-3532-4CD1-8BF0-4BC572DADC87.png


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Discussion Starter #3
Thank you for your reply I was hoping someone would see the pic and know trying to save as much as possible as I鈥檓 sure everyone else is. I鈥檝e been digging and don鈥檛 mind but not as interested in subscribing. Thank you though Sir.
 

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2006 Escalade AWD w/DiabloSport tuner,Jet Performance throttle body/MAF,Airaid MIT
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Like mention above, it is the engine block coolant temperature sensor.
 
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Discussion Starter #6
It was disconnected for about a week and my check engine light was on I reconnected it but it had a slight break so I鈥檓 going to need to order a new one for now it鈥檚 working and lights off ... it was also causing my engine not to start occasionally
 

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2002.5 F55 CORSA STS, 2014 Explorer XLT FWD
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You beat me to it - curiosity got the better of me - I just got finished looking at knock sensor and coolant temp sender pictures in the RockAuto listings for his Escalade.

VERY obvious which is which.
 
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